Home / 2,968.71-4,454.09-1,120.35

Finding the Fourth Proportional to 2,968.71, 4,454.09 and 1,120.35

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Solution

The fourth proportional to 2,968.71, 4,454.09 and 1,120.35 is: 1,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.71 : 4,454.09 = 1,120.35 : x
  2. Step 2: Convert to fraction form
    2,968.71/4,454.09 = 1,120.35/x
  3. Step 3: Cross multiply
    2,968.71x = 4,454.09 × 1,120.35
  4. Step 4: Simplify right side
    2,968.71x = 4,990,139.73
  5. Step 5: Solve for x
    x = 4,990,139.73/2,968.71
  6. Step 6: Final answer
    x = 1,680.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.